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Easy Overnight Eggs Benedict Casserole Recipe for Stress-Free Brunch

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An easy overnight Eggs Benedict casserole that captures the classic flavors with minimal prep, perfect for brunch parties and stress-free mornings.

Ingredients

Scale
  • 6 English muffins, cut into 1-inch cubes (day-old muffins work best)
  • 8 ounces Canadian bacon, chopped (can substitute ham)
  • 8 large eggs, room temperature
  • 2 cups milk (whole milk recommended, 2% works too)
  • ½ cup mayonnaise
  • 1 tablespoon prepared horseradish sauce (optional)
  • 1 teaspoon Dijon mustard
  • 1 cup shredded Swiss cheese
  • Salt and pepper to taste
  • 2 tablespoons butter (for greasing the baking dish)
  • Chopped fresh chives or parsley for garnish (optional)

Instructions

  1. Preheat oven to 350°F (175°C). Grease a 9×13-inch baking dish with 2 tablespoons of butter.
  2. Cut English muffins into 1-inch cubes and toast lightly in a dry pan or under the broiler until just golden.
  3. Chop Canadian bacon into bite-sized pieces and sauté in a skillet over medium heat for 3-4 minutes until slightly browned. Drain excess fat.
  4. In a large bowl, whisk together eggs, milk, mayonnaise, horseradish sauce (if using), Dijon mustard, salt, and pepper until smooth.
  5. Layer toasted muffin cubes evenly in the greased baking dish. Sprinkle cooked Canadian bacon on top, then evenly distribute shredded Swiss cheese over the bacon.
  6. Slowly pour the custard mixture over the layered ingredients, pressing gently with a spatula to help soak the bread. The mixture should nearly cover the bread.
  7. Cover the dish tightly with plastic wrap and refrigerate for at least 6 hours, preferably overnight.
  8. Remove casserole from fridge about 15 minutes before baking. Bake uncovered at 350°F (175°C) for 45-50 minutes until top is golden and center is set (toothpick should come out clean).
  9. If top browns too quickly, tent loosely with foil halfway through baking.
  10. Let casserole rest for 5 minutes before slicing. Garnish with chopped fresh chives or parsley and serve warm.

Notes

Use day-old or toasted English muffins to prevent sogginess. Room temperature eggs and milk help create a smooth custard. Mayonnaise adds richness and moisture mimicking hollandaise sauce. Overnight soaking is key for custardy texture. If casserole is too runny after baking, bake an additional 5-10 minutes. For dairy-free, substitute plant-based milk, vegan cheese, and vegan mayo. For vegetarian, swap Canadian bacon with sautéed mushrooms or smoked tofu.

Nutrition

Keywords: Eggs Benedict casserole, overnight casserole, brunch recipe, easy brunch, Canadian bacon casserole, make-ahead brunch